Process for lustering and finishing silk threads.



sTA rns PATEN EDWARD POHL, or NEW YORK, N. Y.

PROCESS FOR LUSTERING- AND FINISHING SILK THREADS.

Specification of Letters Patent.

Patented Feb. 9, 1909.

Application filed October 27, 1908. Serial No. 4=59,740.

To all whom it may concern: Be it known that I, EDWARD Form, a cltlzenof the United States of America, and av resident of New York, county andState of 5 New York, have invented a certain new and useful Process forLustering and'Finishing Silk Threads, of which the following is aspecification.

My invention relates to methods oftrea l0 ing silk threads in which afinishing or lustering solution is first applied to the threads and thethreads thereafter ironed and polished. Threads thus treated presentsmooth, unbroken, and highly polished surfaces to the eye, the fiberswhich usually project laterally from silk threads being all laid duringthe operation and retained in such condition by the finishing orlustering material. This laying of the fibers is, however,

not desirable in most cases, the loading and polishing of the threadsbeing what is desired, and not the laying of the fibers. When thethreads are finally used in the weaving of silk cloth the-loaded andpolished threads will give the body required and also the polishedsurface or sheen so sought after, but goods made of threads sotreated,when rubbed together, will not produce the desired rustle or swish, and"it is the absence of the projecting fibers which is accountable forthis. The trade and public require this rustle or swish of silk cloth,and it isthe object of my present inventionto treatsilk threads in sucha manner that though loaded and'polished the fibers shall still bepermitted to project laterally therefrom so that this rustle or swishmay result in goodsmade up there" from. To this end I rupture or breakthe 40 surface of the lusteringor finishing material after it has beenapplied, dried, and ironed upon the threads, so as to release the fiberswhich have been laidthereby andto permit them to once more projectlaterally from the surface of the threads. This rupturing of the surfaceof the finishing material may be brought about in any'desired manner,and

suitably dissolved and held in solution while being applied. The threadsmay be dried andv ironed in any suitable manner, as, for instance, bydrawing the same over a heated contact surface, all in a manner whichwill i be well understood by those skilled in this a Suitable take-upmeans, as, for instance, a spool winding apparatus may be provlded fordrawmg the threads over the surface and winding them on to spools intocondition ready for further use. What I clalm 1s: 1. The hereindescribed process of lustermg and finishing'silk threads which consistsin first applying a finishing or lustering solution to the threads,whereby the threads are loaded andthe fibers laid, in then drying andironing the threads so treated, and in finally rupturing the surface ofthe dried and ironed finishing or lustering material to release the laidfibers.

2. Thehereindescribed process of luster- Jing and finishing silk threadswhich consists 1n firstapplying a finishing or lustering solution to thethreads, whereby the threads are loaded and the fibers laid, in thendrying and ironing the threads, and in finally rubbing the threadsacross the edge of a contact element so as to rupture the surface of thedried and ironed finishing or lustering material in order to release thelaid fibers and to permit them to project laterally.

I EDWARD POHL. Witnesses D. HOWARD HAYWOOD, LYMAN S. ANDREWS, J r.

